ace97302 wrote:
The fact that it requires +12 on one body doesn't mean it isn't focusing properly. That's within spec. Nikon allows for a certain margin of error in focusing precision from body to body. So you can't expect a "perfect" lens to focus perfectly on any given body. Some adjustment may be required. JR could sell his lens to someone else and they might require -12.
Very true. The more input I get, the more my mind keeps switching back and forth for curious minds, i am leaning towards keeping the lens with me and to stick with the +12 adjustment; i am commited to keep it & not sell it. To everyone's point, I could test out the lens on my D90 to see if it's consistent at +12 or anything different
JR Magat wrote:
[To everyone's point, I could test out the lens on my D90 to see if it's consistent at +12 or anything different
No, you can't . Try a D7000 for that feature. D90 doesn't have AF fine tune. You can only check to see if it is sharp at f/1.4. The good thing about DX though is that the DOF is going to be a little more forgiving if the lens is slightly 'off'
Personally I wouldn't sent it back. If a +12 adjustments gets it as sharp as you want it, then you are good to go. The only thing I wold do, if I were a professional, is send in all my gear (all bodies and lenses) and have the factory calibrate everything together. They can calibrate the body's focus and the lenses, and then to each other for the best results. Sending in just one lens with a body will probably throw off the focus on all your other lenses with that body.
Keep it how it is and don't worry about the resale. People are too panicky about this AF adjustment. Its there for a reason, so use it and don't worry about the fact that its -3 off from perfect. The adjustment made it perfect, so who cares.
I wouldn't worry about a +12 adjustment either. Although frankly I question the validity of these types of focus testing tools like the SpyderCal or whatever it's called. Have you tried re-testing and also testing at various focusing distances? My understanding is tools like this are usually done at close to minimum focusing distance only.
Peter Bui wrote:
I wouldn't worry about a +12 adjustment either. Although frankly I question the validity of these types of focus testing tools like the SpyderCal or whatever it's called. Have you tried re-testing and also testing at various focusing distances? My understanding is tools like this are usually done at close to minimum focusing distance only.
That's a good point Peter, because the focus tests are at close to or at MFD. I adjusted to +12, and retested at close to MFD and it was dead on. The only further confirmation I did was taking pictures of my kids & wife (eyes) but again, at close distance.
I plan to do some further distance testing w/ a tripod later on this week to make sure the adjustment covers further distances as well.
ace97302 wrote:
The fact that it requires +12 on one body doesn't mean it isn't focusing properly. That's within spec. Nikon allows for a certain margin of error in focusing precision from body to body. So you can't expect a "perfect" lens to focus perfectly on any given body. Some adjustment may be required. JR could sell his lens to someone else and they might require -12.
That may be Nikon spec but it really isn't my spec. All I can say, from experience, is that when I take a lens into Nikon for focus calibration, all the lenses have come back sharp! and without any in body adjustments.
If 2 of the exact same lenses are posted in the F/S forum, from reputable sellers, and 1 mentions their lens is sharp without any adjustments and the other states it needs a +12 to be sharp which would you likely buy?
gvg45 wrote:
That may be Nikon spec but it really isn't my spec. All I can say, from experience, is that when I take a lens into Nikon for focus calibration, all the lenses have come back sharp! and without any in body adjustments.
If 2 of the exact same lenses are posted in the F/S forum, from reputable sellers, and 1 mentions their lens is sharp without any adjustments and the other states it needs a +12 to be sharp which would you likely buy?
Honestly, I really wouldn't care. For all I know, the one that currently requires no adjustment could require more adjustment on my body than the one that's +12 on somebody else's camera.
But I agree, if you don't mind giving up your gear for a while, it's best to have Nikon calibrate everything for you.
After all my headaches preordering this lens from amazon, it says its about to be shipped.
I pre-ordered the lens the day it became available to preorder... I think its was september 15th? dont remember, anyway, they canceled my preorder on november 14th, which forced me to re-preorder and get back in line on nov 15th. I was pissed. I called up amazon a few times and ended up getting a nice discount on it (otherwise i would have dropped my order with them).
Waited and waited, eventually found one on JR, bought it at full price, used it (loved it) but decided to sell it and wait for my amazon preorder (you can see my feedback)... Then just earlier this week, I saw another one on cameta... not knowing how long it was going to take for amazon to get the lens, I went ahead and ordered it. Now it looks like i have 2 coming to me.
After all my headaches preordering this lens from amazon, it says its about to be shipped.
I pre-ordered the lens the day it became available to preorder... I think its was september 15th? dont remember, anyway, they canceled my preorder on november 14th, which forced me to re-preorder and get back in line on nov 15th. I was pissed. I called up amazon a few times and ended up getting a nice discount on it (otherwise i would have dropped my order with them).
Waited and waited, eventually found one on JR, bought it at full price, used it (loved it) but decided to sell it and wait for my amazon preorder (you can see my feedback)... Then just earlier this week, I saw another one on cameta... not knowing how long it was going to take for amazon to get the lens, I went ahead and ordered it. Now it looks like i have 2 coming to me.
Well I really wanted the lens for a trip I was going on and amazon was giving me nothing in terms of an estimated arrival date. For all i knew, they could have canceled my order again.
Between that time i also sold my sigma 50 so my focal length coverage is from 14-24, then the next closest is 70mm and i dont like walking around with the 70-200 haha... basically i want/need something in the middle. 35 is perfect.
TSY87 wrote:
amazon was giving me nothing in terms of an estimated arrival date.
As I'm sure you know, it's available just about everywhere right now. dave
Brody LeBlanc wrote:
That second shot is great... did the lens have any trouble nailing the auto-focus on that shot?
No, ez as pie. No front or back adjustment either. I would take a lot of these AF complaints w a grain of salt.Ive owned over 20 nikon lens that all focused perfect and didnt expect this one to become the first canon clunker.
for curious minds, i am leaning towards keeping the lens with me and to stick with the +12 adjustment; i am commited to keep it & not sell it. To everyone's point, I could test out the lens on my D90 to see if it's consistent at +12 or anything different
. Try a D7000 for that feature. D90 doesn't have AF fine tune. You can only check to see if it is sharp at f/1.4. The good thing about DX though is that the DOF is going to be a little more forgiving if the lens is slightly 'off'
